This post is starting off very, very small. I'll add to it periodically. What I really have in mind here is an easy place I can go to...

The Unit of "8.34 pounds per gallon" Explained In the United States a common unit of measurement for water is that it weighs 8.34 pounds...

GSA, MCRT, SRT, and Sludge Age Defined I think there is confusion, sometimes, in how operators (which includes me) define the terms mean...

The Math You Need, When You Need It Temperature Conversion To convert from degrees F to degrees C or vice versa you can use the following...

Introduction Before going into a detailed discussion of the F:M (food-to-mass or food-to-microorganism) ratio I want to let you know...